5 files changed, 54 insertions, 0 deletions
diff --git a/sensor/DHTesp b/sensor/DHTesp
new file mode 160000
+Subproject 643722c48fef78e6243089814c8544553674b48
diff --git a/sensor/Makefile b/sensor/Makefile
new file mode 100644
index 0000000..68ba91f
--- /dev/null
+++ b/sensor/Makefile
@@ -0,0 +1,10 @@
+SKETCH = thermostat.ino
+CUSTOM_LIBS = DHTesp esp8266-oled-ssd1306
+
+UPLOAD_PORT = /dev/ttyUSB0
+BOARD = lolin32
+
+ESP_ROOT = $(HOME)/Arduino/hardware/espressif/esp32/
+CHIP = esp32
+
+include $(HOME)/src/makeEspArduino/makeEspArduino.mk
diff --git a/sensor/README.rst.txt b/sensor/README.rst.txt
new file mode 100644
index 0000000..f97de5c
--- /dev/null
+++ b/sensor/README.rst.txt
@@ -0,0 +1,8 @@
+Some links:
+
+* links to some ESP32 libraries
+  https://www.arduinolibraries.info/architectures/esp32
+* the OLED library https://github.com/ThingPulse/esp8266-oled-ssd1306
+* vague guide to the OLED library
+  https://diyprojects.io/using-i2c-128x64-0-96-ssd1306-oled-display-arduino/
+* the sensor library https://github.com/beegee-tokyo/DHTesp
diff --git a/sensor/esp8266-oled-ssd1306 b/sensor/esp8266-oled-ssd1306
new file mode 160000
+Subproject 1254ef967da6785f420f0895dae9228258cfb87
diff --git a/sensor/thermostat.ino b/sensor/thermostat.ino
new file mode 100644
index 0000000..63f87f0
--- /dev/null
+++ b/sensor/thermostat.ino
@@ -0,0 +1,36 @@
+#include <Wire.h>  
+#include "SSD1306.h"
+#include "DHTesp.h"
+
+SSD1306 display(0x3c, 5, 4);
+DHTesp dht;
+
+void setup() {
+  dht.setup(13,DHTesp::AUTO_DETECT);
+
+  display.init();
+  display.connect();
+  display.displayOn();
+}
+
+void loop() {
+  delay(dht.getMinimumSamplingPeriod());
+  float humidity = dht.getHumidity();
+  float temperature = dht.getTemperature();
+
+  if (dht.getStatus() == DHTesp::ERROR_TIMEOUT) return;
+
+  display.clear();
+
+  String line;
+  line = "T:"; line += temperature;
+  display.drawString(0,0,line);
+  line = "H:"; line += humidity;
+  display.drawString(50,0,line);
+  display.drawString(0,10,dht.getStatusString());
+
+  display.drawProgressBar(5,25,120,10,int(temperature));
+  display.drawProgressBar(5,40,120,10,int(humidity));
+
+  display.display();
+}